AMD EPYC 9634 vs AMD EPYC 7642

VS

AMD EPYC 9634

AMD EPYC 7642

We compared two server CPUs: AMD EPYC 9634 with 84 cores 2.25GHz and AMD EPYC 7642 with 48 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD EPYC 9634 's Advantages

Released 3 years and 3 months late

Higher specification of memory (4800 vs 3200)

Newer PCIe version (5 vs 4)

Larger L3 cache size (384MB vs 256MB)

More modern manufacturing process (5nm vs 7nm)

AMD EPYC 7642 's Advantages

Higher base frequency (2.4GHz vs 2.25GHz)

Lower TDP (225W vs 290W)

Score

Benchmark

Geekbench 6 Single Core

AMD EPYC 9634 +5%

1262

AMD EPYC 7642

1191

Geekbench 6 Multi Core

AMD EPYC 9634

5595

AMD EPYC 7642 +103%

11362

AMD EPYC 9634

VS

AMD EPYC 7642

General Parameters

Nov 2022

Release Date

Aug 2019

AMD

Manufacturer

AMD

Server

Type

Server

Genoa

Core Architecture

Rome

AMD Socket SP5

Socket

AMD Socket SP3

N/A

Integrated Graphics

N/A

EPYC (Zen 4 (Genoa))

Generation

EPYC (Zen 2 (Rome))

Package

78.84 billions

Transistor Count

3.8 billions

5 nm

Manufacturing Process

7 nm

290 W

Power Consumption

225 W

TSMC

Foundry

TSMC

12x72 mm²

Die Size

74 mm²

6 nm

I/O Process Size

-

397 mm²

I/O Die Size

-

CPU Performance

2.25 GHz

Performance Core Base Frequency

2.4 GHz

3.7 GHz

Performance Core Turbo Frequency

3.4 GHz

84

Total Core Count

48

168

Total Thread Count

96

100 MHz

Bus Frequency

100 MHz

22.5

Multiplier

24.0

64 K per core

L1 Cache

96 K per core

1 MB per core

L2 Cache

512 K per core

384 MB shared

L3 Cache

256 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR5-4800

Memory Types

DDR4-3200

12

Max Memory Channels

8

Yes

ECC Memory Support

Yes

Miscellaneous

5

PCIe Version

4

128

PCIe Lanes

-

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